I have one in front of me labelled UTM 210-9 25435,3 watt probably Russian and can find no info Like the standard pillar white/grey ceramic resistors but instead of the wire returning down the flute of the ceramic there is a sprung join set in the flute with bismuth solder or something. Anyone know a generic name for this type of thermal cut out resistor or a maker name ? Other than the opening temperature must be greater than the sustained power rating temp of the resistor and lower than standard solder, anyone know what sort of safety cut out temperature?
- posted
12 years ago